"melco" wrote:
I want my audience to know how much time is left or what percentage is left in my powerpoint...

Uh, are your *sure* you want your audience to be distracted by that type of
info? If your presentation is well done, the audience should not care how
much longer it will last. But if there's some compelling reason to let them
know, what about an occasional "xx/yy" on a slide, letting them know they're
looking at slide #xx out of a total of yy slides? But if this info is
displayed on every slide, they'll be paying more attention to the countdown
than to the presentation itself, no?